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Summary

Summary

During the take-off run, just before reaching V1, the crew heard two bangs in quick succession. Both the No 3 engine EPR and EGT indications were seen to fluctuate, so the takeoff was immediately rejected. Whilst decelerating, the crew requested a frequency to communicate directly with the Rescue and Fire Fighting Service (RFFS), but were given the ground control frequency. That frequency was cluttered with other traffic, which made direct communication to RFFS difficult. They were finally referred to a different frequency. The aircraft vacated the runway onto taxiway Alpha 5 where a small brake fire was extinguished by the RFFS. The aircraft was subsequently towed back to the departure gate, where the passengers and crew disembarked. Ground inspection revealed damage to several compressor stages of No.3 engine. The engine was changed, and the aircraft released for service. Safety Action The Bureau of Air Safety Investigation is evaluating aspects of a discrete air traffic services frequency on which aircrews and rescue fire fighting services at airports can be transferred during an emergency situation. Any forthcoming recommendations will be published in the Quarterly Safety Deficiency Report.
 
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